CDD3X1 GREYSTONE | Alldatasheet
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GREYSTONE HAS AN ISO 9001 REGISTERED QUALITY SYSTEM ROOM CARBON DIOXIDE DETECTOR WITH BAC net® OR MODBUS COMMUNICATIONS CDD3 SERIES PRODUCT DESCRIPTION The CDD3 series uses a highly accurate and reliable Non-Dispersive Infrared (NDIR) sensor combined with state-of-the-art digital linearization and temperature compensated circuitry in an attractive, low profile enclosure for room applications to monitor room CO2, levels. A BACnet® or Modbus Communications signal is provided for connection to a building automation system. Optional features such as temperature, humidity, setpoint adjustment, manual override, and adjustable relay output are available. TYPICAL INSTALLATION For complete installation and wiring details, please refer to the product installation instructions. The CDD3 series can be mounted directly to a single gang electrical box or directly to a wall. The backplate includes many mounting hole configurations to allow for mounting on a variety of electrical boxes. The basic CDD3 has a screw block terminal provided for connection to the Building Automation System. CO2 SIGNAL Measurement Type: Dual Channel (NDIR) Range: 0-10,000ppm Standard Accuracy: ± (30ppm + 3% of measured value) Coverage Area: 100m2 (1000ft2) typical Temperature Dependence: ±2.5ppm/°C Altitude Correction: Programmable from 0-5000 ft via BACnet® or Modbus Response Time: 20 seconds Life Span 15 years typical NETWORK INTERFACE Hardware: 2-wire RS-485 Software: BACnet® - MS/TP protocol Modbus - MS/P (RTU) Baud Rate: BACnet® - Locally set to 9600, 19200, 38400, 57600, 76800 or 115200 Modbus – Locally set to 9600, 19200, 38400, 57600, 76800 or 115200 Address Range: BACnet® - Locally set to 0-127 (factory default is 3), (63 devices max on one daisy chain) Modbus - Locally set to 1-255 (factory default is 1), (255 devices max on one daisy chain) OPTIONAL TEMPERATURE Sensing Element: NTC thermistor Accuracy: ±0.2°C @ 0 to 50°C (±0.36°F @ 32 to 122°F) Resolution: 0.1°C (0.2°F) Range: 0 to 50°C (32 to 122°F) OPTIONAL RH Sensing Element: Thermoset polymer based capacitive Accuracy: ±2 %RH Range: 0 to 100 %RH, non-condensing Resolution: 1 %RH Hysteresis: ±0.8 %RH @25°C (77°F) Response Time: 8 seconds Stability: <0.25 %RH/year OPTIONAL RELAY OUTPUT Contact Ratings: Form A contact (N.O.), 2 Amps @ 140 Vac/30 Vdc Relay Trip Point: Programmable 500 - 1500ppm via BACnet® or Modbus Relay Hysteresis: Programmable 25-200ppm via BACnet® or Modbus OPTIONAL LCD DISPLAY Resolution: 1ppm CO2 1 %RH, 1°C (1°F) Size: 35mm W x 15mm H (1.4” x 0.6”) alpha-numeric 2 line x 8 character Backlight: Enable or disable via keypad OPTIONAL OVERRIDE SWITCH Front panel push-button available as BACnet® or Modbus register OPTIONAL SETPOINT CONTROL Front panel push-buttons available as 0 to 100% as BACnet® object or Modbus register POWER SUPPLY 24 Vdc ±20% or 24 Vac ±10% (non-isolated half-wave rectified) CONSUMPTIONS 80 mA max @ 24 Vdc, 140 mA max @ 24 Vac with all options OPERATING CONDITIONS 0 to 50°C (32 to 122°F), 0 to 90 %RH non-condensing WIRING CONNECTIONS Screw terminal block (14 to 22 AWG) ENCLOSURE White ABS, 84mm W x 119mm H x 29mm D (3.3” x 4.7” x 1.15”), IP30 (NEMA 1) APPROVALS CE COUNTRY OF ORIGIN Canada SPECIFICATIONS 84 mm 3.3" 29 mm 1.15" 119 mm 4.7" 58 mm 2.3" 82.6 mm 3.25"
PRINTED IN CANADA Copyright © Greystone Energy Systems Inc. All Rights Reserved www.greystoneenergy.com PS-CDD3X1XXX-04 Greystone Energy Systems, Inc.
150 English Drive, Moncton,
New Brunswick, Canada E1E 4G7 Ph: +1 (506) 853-3057 Fax: +1 (506) 853-6014 North America: 1-800-561-5611 E-mail: mail@greystoneenergy.com WIRING INFORMATION TERMINAL FUNCTION A(-) Network Output B(+) Network Output Shield Network Output COMMON Common POWER 24 Vac/Vdc Supply N.OPEN Relay Output RELAY COM Relay Common NOTE: This CO2 sensor incorporates a Self Calibration feature to correct CO2 sensor drift. This feature is recommended for applications where the CO2 will be exposed to fresh air (400 ppm) at least one hour per day. If the monitored space is occupied 24 hours or consistently maintains higher or lower levels of CO2 , it is recommended that this feature be turned off, but yearly calibration will be required. If the self calibration is disabled at installation time without allowing for 7 day auto calibration cycle, then a manual calibration should be performed to ensure accuracy of the device. The Self Calibration feature can be set via the BACnet® Auto Cal Object or Modbus Auto Cal Register. The default is ON. PRODUCT CDD3A10 CDD3B10 Room Carbon Dioxide Transmitter with BACnet® Communications Room Carbon Dioxide Transmitter with Modbus Communications DISPLAY 0 Concealed Viewable CONFIGURATIONS - RH T CO2 Only CO2, Humidity & Temperature CO2 & Temperature OPTIONS (MULTIPLE SELECTIONS CAN BE MADE) (LEAVE BLANK IF NO OPTIONS REQUIRED) P S R Setpoint control, 2 button up/down Exposed push button momentary switch - N.O. Relay output ORDERING PART NUMBER NOTE: Greystone Energy Systems, Inc. reserves the right to make design modifications without prior notice.